CN217753700U - Anti-collision protection device of unmanned vehicle - Google Patents
Anti-collision protection device of unmanned vehicle Download PDFInfo
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- CN217753700U CN217753700U CN202222232194.0U CN202222232194U CN217753700U CN 217753700 U CN217753700 U CN 217753700U CN 202222232194 U CN202222232194 U CN 202222232194U CN 217753700 U CN217753700 U CN 217753700U
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Abstract
The utility model relates to the technical field of auto parts, and discloses an anti-collision protection device of an unmanned vehicle, which comprises anti-collision beams connected to the front end and the rear end of an unmanned vehicle drive-by-wire chassis through elastic pieces and power-off switches arranged on the front end surface and the rear end surface of the unmanned vehicle drive-by-wire chassis, wherein the power-off switches are arranged opposite to the anti-collision beams and are connected in series with a hub motor of the unmanned vehicle drive-by-wire chassis; the elastic part comprises a fixed seat and a movable seat which is coaxial with the fixed seat and is movably connected with the fixed seat, a spring is arranged between the fixed seat and the movable seat, the fixed seat is detachably and fixedly installed on the end surface of the drive-by-wire chassis of the unmanned vehicle, and the anti-collision beam is fixedly connected with the movable seat. The anti-collision beam is arranged at the front end and the rear end of the unmanned vehicle drive-by-wire chassis through the elastic parts, and the elastic parts can absorb most of collision energy after the anti-collision beam collides with a pedestrian or an obstacle, so that the injury to the pedestrian can be reduced, the impact on the drive-by-wire chassis after the anti-collision beam collides with the obstacle can also be reduced, and the damage to the drive-by-wire chassis is reduced.
Description
Technical Field
The utility model relates to the technical field of auto-parts, especially, relate to an anticollision protection device of unmanned car.
Background
The drive-by-wire automobile chassis mainly comprises a drive-by-wire steering, a drive-by-wire brake, a drive-by-wire gear shift, a drive-by-wire accelerator and a drive-by-wire suspension. The drive-by-wire chassis is a combination point of automatic driving and a new energy automobile and is a key carrier for realizing unmanned driving. The drive-by-wire chassis is called the drive-by-wire because the conventional mechanical, hydraulic or pneumatic connections are replaced by wires (electrical signals) so that there is no need to output the driver's force or torque.
The chassis of many pure electric vehicles now have some drive-by-wire capabilities. Steer-by-wire and brake-by-wire are core products facing the direction of the end of autonomous driving performance, with the braking technique being the most difficult. At present, the existing unmanned vehicle based on a wire control automobile chassis mostly adopts a rigid anti-collision beam and does not have an anti-collision protection function, namely, the pedestrian or the obstacle cannot be protected after the unmanned vehicle collides with the pedestrian or the obstacle in the driving process, so that serious traffic accidents are possibly caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a convenient collision avoidance device of unmanned car is dismantled in protection nature good, installation.
The technical problem to be solved is that: the existing unmanned vehicle based on the drive-by-wire automobile chassis mostly adopts a rigid anti-collision beam and does not have an anti-collision protection function, namely, the pedestrian or the barrier cannot be protected after the unmanned vehicle collides with the pedestrian or the barrier in the driving process, so that serious traffic accidents are possibly caused.
In order to solve the technical problem, the utility model adopts the following technical scheme:
an anti-collision protection device of an unmanned vehicle comprises anti-collision beams connected to the front end and the rear end of a drive-by-wire chassis of the unmanned vehicle through elastic pieces and power-off switches arranged on the front end face and the rear end face of the drive-by-wire chassis of the unmanned vehicle, wherein the power-off switches are arranged opposite to the anti-collision beams and are connected in series with hub motors of the drive-by-wire chassis of the unmanned vehicle;
the elastic component comprises a fixed seat and a movable seat coaxially and movably connected with the fixed seat, a spring is arranged between the fixed seat and the movable seat, the fixed seat is detachably and fixedly installed on the end face of the wire-controlled chassis of the unmanned vehicle, and the anti-collision beam is fixedly connected to the movable seat.
Furthermore, the fixing seat is columnar, end plates are arranged at two ends of the fixing seat, a connecting hole extending towards the inside of the fixing seat is formed in the middle of one end plate in a penetrating mode, and limiting holes are uniformly distributed on the periphery of the end plate; the other end plate is fixedly arranged on the end face of the unmanned vehicle line control chassis through a bolt;
the middle part of the movable seat is provided with a connecting column corresponding to the connecting hole, the connecting column is movably inserted into the connecting hole, the spring is positioned in the connecting hole, one end of the spring is propped against the bottom of the connecting hole, and the other end of the spring is propped against the end face of the connecting column;
the movable seat is further provided with limiting columns corresponding to the limiting holes one to one, the limiting columns are movably arranged in the limiting holes in a penetrating mode, a limiting ring is arranged at one end of the penetrating limiting column, and the diameter size of the limiting ring is larger than that of the limiting holes.
Furthermore, a sliding sleeve is arranged in the connecting hole, and the connecting column is arranged in the sliding sleeve in a penetrating mode.
Further, the anticollision roof beam is including relative outer panel and the interior plate that sets up, connect through being honeycomb silica gel layer between outer panel and the interior plate.
Furthermore, the upper side and the lower side of the outer side plate are both provided with bending plates horizontally bent towards one side of the inner side plate, and the inner side plate is arranged between the two bending plates.
Further, the anti-collision beam is connected to the movable seat through a U-shaped connecting plate;
the two ends of the top of the connecting plate are turned outwards to form connecting parts, and the connecting parts are fixedly connected to the movable seat through bolts.
Furthermore, a silica gel pad is arranged on the outer side plate surface of the outer side plate.
Further, be provided with on the anticollision roof beam with the post that triggers that power-off switch corresponds.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses an anticollision protection device of unmanned vehicle, its anticollision roof beam pass through the elastic component and install both ends around unmanned vehicle drive-by-wire chassis, and the elastic component can absorb most striking energy after the anticollision roof beam hits pedestrian or barrier, can reduce the injury to the pedestrian, also can reduce to the impact on the drive-by-wire chassis behind the striking barrier, reduces the damage to the drive-by-wire chassis.
And, the elastic component is compressed after the anticollision roof beam hits pedestrian or barrier, and the anticollision roof beam is close to the outage switch and presses the outage switch and makes the in-wheel motor outage, and the stall, unmanned car line control chassis can lose power, cuts off the power supply to the in-wheel motor through mechanical system, and the reliability is higher.
Drawings
Fig. 1 is a schematic view of an installation structure of an anti-collision protection device of an unmanned vehicle on an unmanned vehicle linear control chassis;
fig. 2 is a schematic structural view of the collision avoidance system of the unmanned vehicle of the present invention;
FIG. 3 is a schematic view of the structure of the elastic member;
FIG. 4 is a schematic structural view of the fixing base;
FIG. 5 is a schematic view of the spring mounting structure in the fixing base;
FIG. 6 is a schematic structural view of the movable seat;
FIG. 7 is a schematic structural view of an impact beam;
fig. 8 is a cross-sectional structural view of the impact beam.
Detailed Description
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1-2, the embodiment provides a collision avoidance device of unmanned vehicle, include the crashproof roof beam 3 of connecting both ends around unmanned vehicle drive-by-wire chassis 2 and install the power off switch 4 on unmanned vehicle drive-by-wire chassis 2 front and back terminal surface through elastic component 1, power off switch 4 sets up with crashproof roof beam 3 relatively, after crashproof roof beam 3 was strikeed, compression elastic component 1, crashproof roof beam 3 is close to power off switch 4, make power off switch 4 disconnection, power off switch 4 establishes ties with unmanned vehicle drive-by-wire chassis 2's in-wheel motor, when power off switch 4 disconnection back in-wheel motor outage stall. During actual design, the power-off switch 4 can be electrically connected with the vehicle-mounted controller, when the end of the power-off switch 4 is opened, a trigger signal can be sent to the vehicle-mounted controller, for example, a corresponding port of the vehicle-mounted controller is changed from a high potential to a low potential, and the vehicle-mounted controller controls the brake device to start and brake in time after receiving the trigger signal.
Specifically, as shown in fig. 3, the elastic part 1 comprises a fixed seat 5 and a movable seat 6 which is coaxial with and movably connected with the fixed seat 5, a spring 7 is arranged between the fixed seat 5 and the movable seat 6, the fixed seat 5 is fixedly arranged on the end surface of the chassis 2 of the unmanned vehicle control line, and the anti-collision beam 3 is fixedly connected onto the movable seat 6.
As shown in fig. 4 and 5, the fixing base 5 is in a column shape, end plates 8 are arranged at two ends of the fixing base 5, wherein a connecting hole 9 extending towards the inside of the fixing base 5 is formed in the middle of one end plate 8 in a penetrating mode, and limit holes 10 are uniformly distributed on the periphery of the connecting hole. And the other end plate 8 is fixedly arranged on the end surface of the unmanned vehicle linear control chassis 2 through bolts. As shown in fig. 6, the middle of the movable seat 6 is provided with a connecting column 11 corresponding to the connecting hole 9, the connecting column 11 is movably inserted into the connecting hole 9, the spring 7 is arranged in the connecting hole 9, one end of the spring 7 is abutted against the bottom of the connecting hole 9, and the other end of the spring 7 is abutted against the end face of the connecting column 11. The movable seat 6 is also provided with a limiting column 12 which is in one-to-one correspondence with the limiting hole 10, the limiting column 12 is movably arranged in the limiting hole 10 in a penetrating mode, a limiting ring 13 is arranged at one end of the penetrating limiting column, and the diameter size of the limiting ring 13 is larger than that of the limiting hole 10.
Kinetic energy generated during impact is absorbed by the compression spring 7, and the limit column 12 limits the moving stroke of the movable seat 6, so that the movable seat 6 cannot be separated from the fixed seat 5. In order to make the connecting column 11 slide more smoothly, a sliding sleeve 14 is arranged in the connecting hole 9, and the connecting column 11 is arranged in the sliding sleeve 14 in a penetrating way and slides along the sliding sleeve 14.
As shown in fig. 7 and 8, the impact beam 3 includes an outer panel 15 and an inner panel 16 that are disposed opposite to each other, the outer panel 15 and the inner panel 16 are connected by a honeycomb-shaped silicone layer 17, and the connection rigidity between the outer panel 15 and the inner panel 16 is reduced by the connection of the silicone layer 17, so that the impact beam can also play a role in cushioning, and the strength of the entire impact beam 3 can be maintained to play an impact role.
In order to prevent sundries such as stones from being blocked in the silica gel layer 17 and prevent the silica gel layer 17 from being deformed or damaged after being compressed, the upper side and the lower side of the outer side plate 15 are respectively provided with a bending plate 18 horizontally bent to one side of the inner side plate 16, and the inner side plate 16 is arranged between the two bending plates 18, so that the upper side and the lower side of the silica gel layer 17 are packaged, and the sundries are prevented from entering.
As shown in fig. 6, the impact beam 3 is connected to the movable base 6 by a U-shaped connecting plate 19. Two ends of the top of the connecting plate 19 are turned outwards to form connecting parts, and the connecting parts are fixedly connected to the movable seat 6 through bolts. The movable seat 6 is provided with a cushion block, and the inner side plate 16 abuts against the cushion block after the anti-collision beam 3 is installed, so that the outer side plate 15 and the movable seat 6 have a certain movable space. The impact beam 3 is mounted by the connecting plate 19 without affecting the deformation between the outer panel 15 and the inner panel 16. As shown in fig. 7, a silicone pad 20 is disposed on the outer panel 15 surface of the outer panel 15, and the silicone pad 20 provides a flexible support when colliding with a pedestrian, so as to reduce injury to the pedestrian.
As shown in fig. 1, 2 and 7, the collision avoidance beam 3 is provided with a trigger post 21 corresponding to the power-off switch 4, and when a collision occurs, the trigger post 21 abuts against the power-off switch 4 to disconnect the power-off switch 4, so that the hub motor of the wire-controlled chassis 2 of the unmanned vehicle is powered off.
To sum up, the utility model discloses an anticollision protection device of unmanned vehicle, its anticollision roof beam pass through the elastic component and install both ends around unmanned vehicle drive-by-wire chassis, and the elastic component can absorb most striking energy after the anticollision roof beam hits pedestrian or barrier, can reduce the injury to pedestrian, also can reduce to the impact on the drive-by-wire chassis behind the striking barrier, reduces the damage to the drive-by-wire chassis.
And, the elastic component is compressed after the anticollision roof beam hits pedestrian or barrier, and the anticollision roof beam is close to the outage switch and presses the outage switch and makes the in-wheel motor outage, and the stall, unmanned car line control chassis can lose power, cuts off the power supply to the in-wheel motor through mechanical system, and the reliability is higher.
Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the technical solutions of the present invention can be modified or replaced with other equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (8)
1. The utility model provides an anticollision protection device of unmanned vehicle which characterized in that: the automatic wire-controlled unmanned vehicle comprises anti-collision beams (3) connected to the front end and the rear end of an unmanned vehicle wire-controlled chassis (2) through elastic pieces (1) and power-off switches (4) arranged on the front end face and the rear end face of the unmanned vehicle wire-controlled chassis (2), wherein the power-off switches (4) are arranged opposite to the anti-collision beams (3), and the power-off switches (4) are connected with hub motors of the unmanned vehicle wire-controlled chassis (2) in series;
elastic component (1) including fixing base (5) and with coaxial, swing joint in fixing base (5) sliding seat (6), be provided with spring (7) between fixing base (5) and sliding seat (6), fixing base (5) detachably fixed mounting be in on the terminal surface of unmanned vehicle line accuse chassis (2), anticollision roof beam (3) fixed connection be in on sliding seat (6).
2. The collision avoidance system for an unmanned vehicle of claim 1, wherein: the fixing seat (5) is columnar, end plates (8) are arranged at two ends of the fixing seat (5), a connecting hole (9) extending towards the inside of the fixing seat (5) is formed in the middle of one end plate (8) in a penetrating mode, and limiting holes (10) are uniformly distributed on the periphery of the connecting hole; the other end plate (8) is fixedly arranged on the end surface of the unmanned vehicle drive-by-wire chassis (2) through bolts;
the middle part of the movable seat (6) is provided with a connecting column (11) corresponding to the connecting hole (9), the connecting column (11) is movably inserted into the connecting hole (9), the spring (7) is positioned in the connecting hole (9), one end of the spring (7) is abutted to the bottom of the connecting hole (9), and the other end of the spring is abutted to the end surface of the connecting column (11);
the movable seat (6) is further provided with limiting columns (12) corresponding to the limiting holes (10) one to one, the limiting columns (12) are movably arranged in the limiting holes (10) in a penetrating mode, a limiting ring (13) is arranged at one end of the penetrating limiting columns, and the diameter size of the limiting ring (13) is larger than that of the limiting holes (10).
3. The collision avoidance system for an unmanned vehicle of claim 2, wherein: a sliding sleeve (14) is arranged in the connecting hole (9), and the connecting column (11) is arranged in the sliding sleeve (14) in a penetrating mode.
4. The collision avoidance system for an unmanned vehicle of claim 1, wherein: the anti-collision beam (3) comprises an outer side plate (15) and an inner side plate (16) which are oppositely arranged, and the outer side plate (15) and the inner side plate (16) are connected through a honeycomb-shaped silica gel layer (17).
5. The unmanned vehicle crash protection device of claim 4, wherein: the upper side and the lower side of the outer side plate (15) are respectively provided with a bending plate (18) which is horizontally bent towards one side of the inner side plate (16), and the inner side plate (16) is arranged between the two bending plates (18).
6. The collision avoidance system for an unmanned vehicle of claim 4, wherein: the anti-collision beam (3) is connected to the movable seat (6) through a U-shaped connecting plate (19);
the two ends of the top of the connecting plate (19) are outwards turned to form connecting parts, and the connecting parts are fixedly connected to the movable base (6) through bolts.
7. The collision avoidance system for an unmanned vehicle of claim 4, wherein: and a silica gel pad (20) is arranged on the surface of the outer side plate (15).
8. The crash protection device for the unmanned vehicle as claimed in claim 1, wherein: and the anti-collision beam (3) is provided with a trigger column (21) corresponding to the power-off switch (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222232194.0U CN217753700U (en) | 2022-08-24 | 2022-08-24 | Anti-collision protection device of unmanned vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222232194.0U CN217753700U (en) | 2022-08-24 | 2022-08-24 | Anti-collision protection device of unmanned vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217753700U true CN217753700U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222232194.0U Active CN217753700U (en) | 2022-08-24 | 2022-08-24 | Anti-collision protection device of unmanned vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN217753700U (en) |
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- 2022-08-24 CN CN202222232194.0U patent/CN217753700U/en active Active
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